Diagnostics
ACTIA Diagnostics Solutions
A partner to OEMs
ACTIA is a recognized leader in diagnostic software, hardware, and services, equipping some of the world’s most prestigious vehicle manufacturers—including BMW and the PSA Group—across production plants and dealer networks. With proven expertise in hybrid and electric vehicle diagnostics, ACTIA supports major automotive OEMs throughout the entire vehicle lifecycle, from design and production to aftersales and service.
An innovator in multi-brand solutions
With over 30 years of diagnostics experience, ACTIA has set the benchmark in the multi-brand diagnostics market through its proprietary solution, Multi-Diag. Renowned for both advanced software capabilities and a comprehensive range of equipment, Multi-Diag is trusted by leading multi-brand networks such as Feu Vert, Euromaster, and Midas, as well as thousands of independent workshops. Today, more than 150,000 users worldwide rely on Multi-Diag as part of a global diagnostics community.
Connected Workshop solutions
ACTIA’s connected workshop ecosystem enhances vehicle diagnostics and maintenance services through the ACTIA Connect portal, which combines visual, mechanical, and electronic vehicle data to generate complete and reliable diagnostic reports and support repair operations. At the core of this system is ACTIA’s range of multi-protocol Vehicle Communication Interfaces (VCIs), which connect directly to the vehicle’s diagnostic socket and communicate with all electronic and electrical systems. This seamless connectivity enables precise, clear, and accurate assessments of vehicle condition, optimizing maintenance efficiency and service quality.
ACTI-DIAG is a powerful software platform designed to author, manage, and deploy advanced diagnostic applications and routines across the vehicle lifecycle.
It enables manufacturers to create custom diagnostic scripts directly in the factory, manage vehicle variants, and automate testing, calibration, and end-of-line inspection processes. The platform is fully data-driven, eliminating the need to recompile software when updates or changes are required. ECU diagnostic data can also be leveraged by aftersales teams to support troubleshooting, service operations, and long-term maintenance strategies. ACTI-DIAG integrates easily with existing customer tools, including spare parts catalogs, enabling optimized preventive maintenance and improved operational efficiency.
This platform is built on decades of expertise from ACTIA. In 1985, ACTIA invented the first diagnostic tool. Today, the group is the trusted diagnostic partner of major vehicle manufacturers worldwide. ACTIA is a global leader in comprehensive maintenance solutions, combining robust hardware offerings such as rugged PCs, vehicle communication interfaces, and garage equipment with advanced software platforms.
ACTI-DIAG brings this know-how together into a single diagnostic environment that integrates on-board, remote, aftersales, and workshop diagnostic solutions. It plays a critical role in ensuring vehicle reliability, maximizing availability, and supporting maintenance throughout the entire vehicle lifecycle.
Electronic diagnostics sits at the crossroads of ACTIA’s core areas of expertise, including telematics and on-board electronic architecture, and is delivered through a service-oriented approach encompassing fleet management, garage equipment, and vehicle inspection solutions.
Multi-MUX diagnostics provide unrivalled access to the ActiMUX electrical system, enabling rapid identification of faults that may be keeping vehicles off the road. Effective use of this diagnostic capability helps reduce downtime and return vehicles to service faster, improving overall fleet availability.
Backed by ACTIA’s extensive experience in diagnostic software and hardware, the Multi-MUX solution is delivered as a comprehensive diagnostic kit designed to support a wide range of vehicle systems and configurations.
This solution enables accurate fault diagnosis across complex multiplexed systems, supporting faster repairs, improved maintenance workflows, and increased vehicle uptime.
- With More than 250,000 VCIs deployed worldwide.
- Compatible with most diagnostics standards and protocols (SAE J1939, ISO15765 CAN UDS, ISO14230 Kw2000…).
- Multiple communication interfaces.
- Multi-language package.
- Hardware & software piracy protection to prevent reverse engineering.
- Wi-Fi, Bluetooth capabiliy.
- A versatile tool for maintenance, electronic diagnostics & repair, electrical & physical measurements.
- A fully connected and wireless solution.
